CN107052150A - Weld tabs is with reverse drawing diel - Google Patents

Weld tabs is with reverse drawing diel Download PDF

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Publication number
CN107052150A
CN107052150A CN201710395539.5A CN201710395539A CN107052150A CN 107052150 A CN107052150 A CN 107052150A CN 201710395539 A CN201710395539 A CN 201710395539A CN 107052150 A CN107052150 A CN 107052150A
Authority
CN
China
Prior art keywords
plate
pin
punch
screw
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710395539.5A
Other languages
Chinese (zh)
Inventor
简铮
高雅
夏蓓鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Shanghai for Science and Technology
Original Assignee
University of Shanghai for Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CN201710395539.5A priority Critical patent/CN107052150A/en
Publication of CN107052150A publication Critical patent/CN107052150A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14Dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/34Perforating tools; Die holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001Shaping combined with punching, e.g. stamping and perforating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/003Simultaneous forming, e.g. making more than one part per stroke
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/08Dies with different parts for several steps in a process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention discloses a kind of weld tabs with reverse drawing diel, including die shoe, blanking die, stripper, upper mounted plate, backing plate, upper bolster, blanking punch, piercing punch, drawing cavity plate, forced die shank, ejector, spring, screw, process-cut punch-pin, side edge, guide pin bushing, depression bar, nut, straight pin, unloading bolt, stock guide, connecting plate, bottom plate, lever, pivot pin, pillar, guide pillar, stock supporting plate, cavity plate, ejector, guide plate, drawing punch-pin, rush Drawing Hole punch-pin, anti-turn screw;Feature is:Depression bar is fixed with upper bolster, die shoe has lever, convex type through hole is reversely processed by lever drives drawing punch-pin and piercing punch, the other processing requests of workpiece are processed by the method for forward direction processing simultaneously, by the mould structure of the present invention, the automation processing of whole workpiece can be achieved.A kind of weld tabs proposed by the present invention with reverse drawing diel, can process one be through hole, other end be convex type through-hole type weld tabs.Have the advantages that automated production, production efficiency are high, production cost is low, be adapted to produce in enormous quantities.

Description

Weld tabs is with reverse drawing diel
Technical field
The present invention relates to punching die structure technical field, and in particular to one kind is used for diel, and mould can process one Head be through hole, other end be convex type through-hole type weld tabs.
Background technology
Diel abbreviation punch die, is that in Cold Press Working, material (metal is nonmetallic) is processed into part (or half Finished product) a kind of special process equipment, punch die is most important in punching production, and what it was designed whether reasonable directly determines life Produce the precision of efficiency, cost and product.
Be presently used for punching press one be through hole, one be convex type through hole weld tabs diel, it is general using positive The processing method of drawing, due to the particularity of convex type through hole, is often processed using the method for positive drawing and once requires workman Lift plate once, plate is pushed ahead a station distance, so as to be processed next time.This processing method not only from Dynamicization degree is low, and processing efficiency is low, and production cost is high, and easily triggers casualties, production development accident in production.
Therefore, present inventor has performed in-depth study and exploration, the mould structure to be introduced below is exactly in this back of the body Produced under scape.
The content of the invention
It is an object of the invention to the defect for existing weld tabs class mould, there is provided a kind of reverse drawing of new weld tabs The structure of diel.One set of die is only needed to complete punching, drawing through a punching press it is an object of the invention to provide one kind Deep and three kinds of processes of blanking, operating efficiency is high, and production cost is low, can meet the diel of requirements of mass production.
To reach above-mentioned purpose, idea of the invention is that:
For such weld tabs class part, to solve the continuous requirement processed automatically, gone out using the method drawing of reverse drawing Convex closure, then goes out convex type through hole with the method being reversely punched, and remaining processing hole goes out part all by just including last workpiece Being processed to the method for punching, and then save prior art needs the artificial process for lifting plate, reduces production cost.
Conceived according to foregoing invention, the present invention is adopted the following technical scheme that:
A kind of weld tabs with reverse drawing diel, including die shoe, blanking die, stripper, upper mounted plate, backing plate, Upper bolster, blanking punch, piercing punch, drawing cavity plate, forced die shank, ejector, spring, screw, process-cut punch-pin, side Sword, guide pin bushing, depression bar, nut, straight pin, unloading bolt, stock guide, connecting plate, bottom plate, lever, pivot pin, pillar, guide pillar, Stock supporting plate, cavity plate, ejector, guide plate, drawing punch-pin, rush Drawing Hole punch-pin, anti-turn screw;The forced die shank and upper bolster For interference fits, upper bolster has anti-turn screw to fix with forced die shank, and backing plate is fixed with below forced die shank;The pad Plate, upper mounted plate, blanking punch, drawing cavity plate, piercing punch, process-cut punch-pin are fixedly connected with side edge;It is fixed Plate, backing plate are fixedly connected with upper bolster using screw with pin;The ejector is used to suppress and is fixed in drawing cavity plate, ejector Spring is pressed between backing plate, matching somebody with somebody between ejector and drawing cavity plate is combined into gap cooperation;The stripper and upper bolster are adopted Connected with unloading bolt, discharging spring is pressed between stripper and backing plate;Kept between the stripper and upper mounted plate certain Spacing;2cm is arrived in the stripper end portion requirement shorter than stock guide 1, to ensure being smoothed out for processing.
Matching somebody with somebody for the guide pin bushing and upper bolster is combined into interference fit, and guide pillar is contacted with guide pin bushing using slidingtype.
The stock guide, blanking die, guide plate, cavity plate are fixedly connected with die shoe using screw with pin;The stock supporting plate With stock guide use mode connects for screw, it is ensured that plate makes smooth advances;The cavity plate, blanking die station position corresponding with die shoe On be provided with discharge gate, to discharge processing waste material;The blanking die is provided with skewed slot, the workpiece processed each time is smoothly arranged Go out, it is ensured that the automation entirely processed is carried out;The ejector is using spring top on cavity plate, and lower spring end is fixed with screw, Screw is used with die shoe and is threadedly coupled.
The drawing punch-pin and piercing punch are embedded in connecting plate, and connecting plate uses mode connects for screw with bottom plate, even Maintained a certain distance between fishplate bar and guide plate, to ensure the activity point of view of lever;Square opening is provided with the middle of the bottom plate, To bear the upper pressure of lever;The pillar is embedded in die shoe, and guide plate is pressed with above and is fixed;The pivot pin and pillar are matched somebody with somebody Interference fit is combined into, pivot pin and matching somebody with somebody for lever interference fits are combined into.
Spring is pressed with below the lever, lower spring end is fixed with screw, and screw is used with die shoe and is threadedly coupled;It is described Depression bar is pressed in above lever, and depression bar, using being threadedly coupled, has nut thread to be connected to depression bar with upper bolster below die shoe On, to ensure that depression bar is fixed on upper bolster.
The present invention compared with prior art, with substantial feature following prominent and marked improvement:
A kind of weld tabs proposed by the present invention is with reverse drawing diel, using reverse drawing and the method being reversely punched Convex type through hole is processed, and the part that goes out of the hole of processing needed for other and workpiece all uses the positive method processing processed, should After above method, it is possible to achieve the automation processing of production, remove the human cost needed for prior art from, enterprise will be greatly reduced Industry expense simultaneously avoids production accident.
Brief description of the drawings
Fig. 1 is a specific embodiment structure main schematic diagram of the weld tabs of the present invention with reverse drawing diel.
Fig. 2 is a specific embodiment structure left schematic diagram of the weld tabs of the present invention with reverse drawing diel.
Fig. 3 is drawing punch-pin and connecting board structure figure in Fig. 2.
In figure:1. die shoe, 2. blanking dies, 3. strippers, 4. upper mounted plates, 5. backing plates, 6. upper bolsters, 7. blankings are convex Mould, 8. piercing punches, 9. drawing cavity plates, 10. forced die shanks, 11. anti-turn screws, 12. ejectors, 13. springs, 14. techniques Lance punch, 15. side edges, 16. guide pin bushings, 17. depression bars, 18. nuts, 19. screws, 20. pins, 21. unloading bolts, 22. discharging bullets Spring, 23. stock guides, 24. screws, 25. pins, 26. connecting plates, 27. bottom plates, 28. levers, 29. pivot pins, 30. pillars, 31. Screw, 32. springs, 33. guide pillars, 34. screws, 35. stock supporting plates, 36. cavity plates, 37. springs, 38. ejectors, 39. guide plates, 40. It is drawing punch-pin, 41. drawing punch-pin, 42. drawing punch-pin, 43. drawing punch-pin, 44. drawing punch-pin, 45. piercing punches, 46. square Hole, 47. discharge gates, 48. skewed slots, 49. screws, 50. screws.
Embodiment
The preferred embodiments of the present invention are described with reference to the drawings as follows:
As shown in Figure 1 to Figure 3, a kind of weld tabs reverse drawing diel, including die shoe 1, blanking die 2, discharging Plate 3, upper mounted plate 4, backing plate 5, upper bolster 6, blanking punch 7, piercing punch 8, drawing cavity plate 9, forced die shank 10, anti-rotation spiral shell Nail 11, ejector 12, spring 13, process-cut punch-pin 14, side edge 15, guide pin bushing 16, depression bar 17, nut 18, screw 19, pin 20, Unloading bolt 21, discharging spring 22, stock guide 23, screw 24, pin 25, connecting plate 26, bottom plate 27, lever 28, pivot pin 29, Pillar 30, screw 31, spring 32, guide pillar 33, screw 34, stock supporting plate 35, cavity plate 36, spring 37, ejector 38, guide plate 39, drawing Deep punch-pin 40, drawing punch-pin 41, drawing punch-pin 42, drawing punch-pin 43, drawing punch-pin 44, piercing punch 45;The push-through die Handle 10 is interference fits with upper bolster 6, and upper bolster 6 has anti-turn screw 11 to fix with forced die shank 10, under forced die shank 10 Side is fixed with backing plate 5;The backing plate 5, upper mounted plate 4, blanking punch 7, drawing cavity plate 9, piercing punch 8, process-cut punch-pin 14 are fixedly connected with side edge 15;Fixed plate 4, backing plate 5 are fixedly connected with upper bolster 6 using screw 19 with pin 20;It is described Ejector 12 is used to suppress and is fixed in drawing cavity plate 9, spring 13 is pressed between ejector 12 and backing plate 5, ejector 12 is with drawing Matching somebody with somebody between deep cavity plate 9 is combined into gap cooperation;The stripper 3 and upper bolster 6 are connected using unloading bolt 21, stripper 3 with Discharging spring 22 is pressed between backing plate 5;Certain spacing is kept between the stripper 3 and upper mounted plate 4;The stripper 3 End portion requirement arrives 2cm than stock guide 23 short 1, to ensure being smoothed out for processing.
The guide pin bushing 16 is contacted with interference fit, guide pillar 33 is combined into upper bolster 6 with guide pin bushing 16 using slidingtype.
The stock guide 23, blanking die 2, guide plate 39, cavity plate 36 and die shoe 1 are fixed using screw 24 and pin 25 to be connected Connect;The stock supporting plate 35 and stock guide 23 be connected using screw 34, it is ensured that plate makes smooth advances;The cavity plate 36, blanking are recessed Discharge gate 47 is provided with mould 2 and the corresponding station position of die shoe 1, to discharge processing waste material;The blanking die 2 is provided with skewed slot, The workpiece processed each time is set smoothly to discharge, it is ensured that the automation entirely processed is carried out;The ejector 38 uses spring 37 Withstand on cavity plate 36, the lower end of spring 37 is fixed with screw 49, screw 49 is used with die shoe 1 and is threadedly coupled.
The drawing punch-pin 40~44 and piercing punch 45 are embedded in connecting plate, and the quantity of drawing punch-pin can be according to adding The actual conditions of work workpiece are adjusted, and 5 are illustrated in the present embodiment, connecting plate 26 uses screw 50 with bottom plate 27 Connection, is maintained a certain distance between connecting plate 26 and guide plate 39, to ensure the activity point of view of lever 28;The bottom plate 27 Centre is provided with square opening 46, to bear the upper pressure of lever 28;The pillar 30 is embedded in die shoe 1, and guide plate is pressed with above 39 are fixed;The pivot pin 29 is combined into interference fits with interference fit, pivot pin 29 is combined into pillar 30 with matching somebody with somebody for lever 28.
The lower section of lever 28 is pressed with spring 32, and the lower end of spring 32 is fixed with screw 31, and screw 31 uses spiral shell with die shoe 1 Line is connected;The depression bar 17 is pressed in the top of lever 28, and depression bar 17, using being threadedly coupled, has with upper bolster 6 in the lower section of die shoe 1 Nut 18 is threaded on depression bar 17, to ensure that depression bar 17 is fixed on upper bolster 6.
With reference to Fig. 1 to Fig. 3, operation principle of the invention is:The plate for needing punching press is placed on stock supporting plate 35 first, by Upper bolster 6 drives backing plate 5, and backing plate 5 drives drawing cavity plate 9, process-cut punch-pin 14, side edge 15 and piercing punch 8 downwardly together Motion, upper mounted plate 4 is pressed on plate, and process-cut punch-pin 14, side edge 15, the forward direction of piercing punch 8 add needed for processing workpiece The technique shape of work, the waste material that processing is produced is excluded from discharge gate 47;At the same time, due to descending, the also band dynamic pressure of upper bolster 6 Bar 17 is descending, and depression bar 17 drives and pressed on lever 28, and lever 28 drives connecting plate 26, bottom plate 27, the and of drawing punch-pin 40~44 Piercing punch 45 is overall up, realizes the processing of workpiece convex type through hole;In last station of processing, blanking punch 7 is cut Lower workpiece, the workpiece processed is skidded off from the skewed slot 48 of blanking die 2;Upper bolster 6 is gone downwards to behind bottom, and upper bolster 6 is up, discharging Plate 3 returns to original position in the presence of discharging spring 22;Ejector 38 recovers original position in the presence of spring 37 Put, while the waste material that the processing of process-cut punch-pin 14 is produced is ejected under the elastic force effect of spring 37 by ejector 38;Ejector 12 recover original position under the elastic force effect of spring 13, while release processing waste material and plate, with ensure processing from Dynamicization;Lever 28 recovers original state in the presence of spring 32, this completes time processing, so moves in circles, Part constantly is processed, automation processing is realized.
In summary, technical scheme provided by the present invention overcomes the shortcoming in prior art, has reached goal of the invention, Embody the technique effect described in applicant.

Claims (4)

1. a kind of weld tabs is with reverse drawing diel, it is characterised in that:Including die shoe (1), blanking die (2), stripper (3), upper mounted plate (4), backing plate (5), upper bolster (6), blanking punch (7), piercing punch (8), drawing cavity plate (9), forced Die shank (10), anti-turn screw (11), ejector (12), spring (13), process-cut punch-pin (14), side edge (15), guide pin bushing (16), Depression bar (17), nut (18), screw (19), pin (20), unloading bolt (21), discharging spring (22), stock guide (23), screw (24), pin (25), connecting plate (26), bottom plate (27), lever (28), pivot pin (29), pillar (30), screw (31), spring (32), guide pillar (33), screw (34), stock supporting plate (35), cavity plate (36), spring (37), ejector (38), guide plate (39), drawing Punch-pin (40), drawing punch-pin (41), drawing punch-pin (42), drawing punch-pin (43), drawing punch-pin (44), piercing punch (45);Institute It is interference fits that forced die shank (10), which is stated, with upper bolster (6), and upper bolster (6) has anti-turn screw (11) with forced die shank (10) It is fixed, it is fixed with backing plate (5) below forced die shank (10);The backing plate (5), upper mounted plate (4), blanking punch (7), drawing Cavity plate (9), piercing punch (8), process-cut punch-pin (14) are fixedly connected with side edge (15);Fixed plate (4), backing plate (5) it is fixedly connected with upper bolster (6) using screw (19) with pin (20);To be fixed on drawing recessed using suppressing for the ejector (12) In mould (9), spring (13), the cooperation between ejector (12) and drawing cavity plate (9) are pressed between ejector (12) and backing plate (5) Coordinate for gap;The stripper (3) and upper bolster (6) using unloading bolt (21) connection, stripper (3) and backing plate (5) it Between be pressed with discharging spring (22);Certain spacing is kept between the stripper (3) and upper mounted plate (4);The stripper (3) End portion requirement arrives 2cm than stock guide (23) short 1, to ensure being smoothed out for processing.
2. weld tabs according to claim 1 is with reverse drawing diel, it is characterised in that:The stock guide (23), fall Material cavity plate (2), guide plate (39), cavity plate (36) are fixedly connected with die shoe (1) using screw (24) with pin (25);The stock supporting plate (35) it is connected with stock guide (23) using screw (34), it is ensured that plate makes smooth advances;The cavity plate (36), blanking die (2) Discharge gate (47) is provided with die shoe (1) correspondence station position, to discharge processing waste material;The blanking die (2) is provided with tiltedly Groove, makes the workpiece processed each time smoothly discharge, it is ensured that the automation entirely processed is carried out;The ejector (38) uses bullet Spring (37) is withstood on cavity plate (36), and spring (37) lower end is fixed with screw (49), and screw (49) is connected with die shoe (1) using screw thread Connect.
3. weld tabs according to claim 1 is with reverse drawing diel, it is characterised in that:The drawing punch-pin (40~ 44) it is embedded in piercing punch (45) in connecting plate, the quantity of drawing punch-pin can be carried out according to the actual conditions of processing workpiece Adjustment, illustrates 5, connecting plate (26) is connected with bottom plate (27) using screw (50), connecting plate in the present embodiment (26) maintained a certain distance between guide plate (39), to ensure the activity point of view of lever (28);In the bottom plate (27) Between be provided with square opening (46), to bear the upper pressure of lever (28);The pillar (30) is embedded in die shoe (1), upper face pressure There is guide plate (39) to be fixed;The pivot pin (29) is combined into interference fit with matching somebody with somebody for pillar (30), pivot pin (29) and lever (28) With being combined into interference fits.
4. weld tabs according to claim 1 is with reverse drawing diel, it is characterised in that:Pressed below the lever (28) There is spring (32), spring (32) lower end is fixed with screw (31), and screw (31) is used with die shoe (1) and is threadedly coupled;The pressure Bar (17) is pressed in above lever (28), and depression bar (17) using being threadedly coupled, has spiral shell with upper bolster (6) below die shoe (1) Female (18) are threaded on depression bar (17), to ensure that depression bar (17) is fixed on upper bolster (6).
CN201710395539.5A 2017-05-27 2017-05-27 Weld tabs is with reverse drawing diel Pending CN107052150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710395539.5A CN107052150A (en) 2017-05-27 2017-05-27 Weld tabs is with reverse drawing diel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710395539.5A CN107052150A (en) 2017-05-27 2017-05-27 Weld tabs is with reverse drawing diel

Publications (1)

Publication Number Publication Date
CN107052150A true CN107052150A (en) 2017-08-18

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107470468A (en) * 2017-09-22 2017-12-15 太仓安路驰汽车部件有限公司 A kind of fine blanking die and its method of work of controllable steel back appearance and size
CN107999597A (en) * 2018-01-08 2018-05-08 伟业精密科技(惠州)有限公司 Air-cushion inflator housing reverse draw forming system
CN109092990A (en) * 2018-06-29 2018-12-28 天台县银通铝业股份有限公司 Turbulent piece production mould
CN110252893A (en) * 2019-07-22 2019-09-20 西安工业大学 Tube socket continuous drawing mold
CN110394390A (en) * 2019-09-03 2019-11-01 杭州五常机械厂 First road die arrangement
CN115194002A (en) * 2022-07-14 2022-10-18 歌尔股份有限公司 Reverse blanking die and stamping equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107470468A (en) * 2017-09-22 2017-12-15 太仓安路驰汽车部件有限公司 A kind of fine blanking die and its method of work of controllable steel back appearance and size
CN107999597A (en) * 2018-01-08 2018-05-08 伟业精密科技(惠州)有限公司 Air-cushion inflator housing reverse draw forming system
CN109092990A (en) * 2018-06-29 2018-12-28 天台县银通铝业股份有限公司 Turbulent piece production mould
CN110252893A (en) * 2019-07-22 2019-09-20 西安工业大学 Tube socket continuous drawing mold
CN110394390A (en) * 2019-09-03 2019-11-01 杭州五常机械厂 First road die arrangement
CN110394390B (en) * 2019-09-03 2024-04-05 杭州威士德灵智科技有限公司 Primary channel die assembly
CN115194002A (en) * 2022-07-14 2022-10-18 歌尔股份有限公司 Reverse blanking die and stamping equipment

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Application publication date: 20170818

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